^I'm sure they'll include some dialogue or email message to that'll keep the non-DLC owners in the loop. If nothing else, Bioware have proven to be adept (if not perfect) at weaving that kind of thing into the narrative.  Still trying to figure out a play of action. So far I think all I need to do is make sure I upgrade the armour and weapons to keep Jack safe and take Tali with me to fight the thing in the cargo bay so someone else is killed when the shields fail. After that it's just a matter of intentionally picking the wrong people for the wrong jobs, while making sure neither Tali or Jack are direct at risk. Then it's just a matter of keeping them both with me for the final battle and hoping nobody makes it back from holding the line. I rekon I can get four people killed before the final battle, leaving six on the line. I suppose the trick is to get the combat oriented characters like Grunt, Garrus and Jacob killed early on, leaving the less capable ones to fend for themselves and die...damn that sound so cold.